'\" te
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.TH LIBDOOR 3LIB "Mar 22, 2005"
.SH NAME
libdoor \- doors library
.SH SYNOPSIS
.LP
.nf
cc [ \fIflag\fR... ] \fIfile\fR... [ \fIlibrary\fR... ]
#include <\fBdoor.h\fR>
.fi

.SH DESCRIPTION
.LP
Historically, functions in this library provided programmatic access to doors,
including the ability to create and call them. This functionality now resides
in \fBlibc\fR(3LIB).
.sp
.LP
Doors are a fast light-weight RPC mechanism for secure control transfer between
processes on the same machine. Conceptually, a thread in one process can issue
a call using a door descriptor that causes code to be executed in another
process and then returns using the traditional synchronous RPC model. Doors
can also be used to pass data and file descriptors between processes.
.sp
.LP
This library is maintained to provide backward compatibility for both runtime
and compilation environments. The shared object is implemented as a filter on
\fBlibc.so.1\fR. New application development need not specify \fB-ldoor\fR.
.SH INTERFACES
.LP
The shared object \fBlibdoor.so.1\fR provides the public interfaces defined
below. See \fBIntro\fR(3) for additional information on shared object
interfaces.
.sp

.sp
.TS
l l
l l .
\fBdoor_bind\fR	\fBdoor_call\fR
\fBdoor_create\fR	\fBdoor_cred\fR
\fBdoor_info\fR	\fBdoor_return\fR
\fBdoor_revoke\fR	\fBdoor_server_create\fR
\fBdoor_ucred\fR	\fBdoor_unbind\fR
.TE

.SH FILES
.ne 2
.na
\fB\fB/lib/libdoor.so.1\fR\fR
.ad
.RS 24n
shared object
.RE

.sp
.ne 2
.na
\fB\fB/lib/64/libdoor.so.1\fR\fR
.ad
.RS 24n
64-bit shared object
.RE

.SH ATTRIBUTES
.LP
See \fBattributes\fR(7) for descriptions of the following attributes:
.sp

.sp
.TS
box;
c | c
l | l .
ATTRIBUTE TYPE	ATTRIBUTE VALUE
MT-Level	Safe
.TE

.SH SEE ALSO
.LP
.BR Intro (3),
.BR libc (3LIB),
.BR attributes (7)
.sp
.LP
Stevens, W. Richard. \fIUNIX Network Programming, Volume 2: Interprocess
Communications, 2/e\fR. Tucson, Ariz.: Prentice Hall, 1999.
